VERTICAL MEASURE

Measure the distance on your kicker between the anti-ventilation plate and upper inside edge of the outboard clamp. Subtract 2 inches from this length, then add 151/2 inches (vertical travel for the model 71091). Cut a wooden stick to this length and tape it so the top is even with the top of the poly mounting board. Place the mounting flange on the transom so that the center of the stick is 1 inch above the bottom of the hull (for powerboat installation) and mark the location for the mounting flange on the transom.